Tuesday, December 10, 2013

Physics: If a car has an acceleration of -3.9m/s^2 and a mass of 2500kg, how do I find the force of friction?

car info ua on  25.11.2013 | 144
car info ua image



jason26


mass=2500kg
initial velocity: 14m/s
final velocity: 0m/s
distance: 25m
(acceleration would therefore be -3.9m/s^2)

Having this info, how do I find the force of friction?
Also, isn't F=ma only for F(net), not for F(friction)?



Answer
here the net force acting is friction force , don't confuse yourself with this, 3.9m/s^2 means the body is constantly deccelerating with this a and there by force acting on it will be f=ma
moreover when you specify the surface body is rolling over or sliding than friction is equall to f=ua
where u is constant of proportionality

What Is The Address for The UA Therder in New York? PLZZ HELP!?




O.o





Answer
There are many different UA theaters throughout New York. Which one are you referring to? If it's the Sheepshead Bay Theater that you were asking about in your other question, here is the info once again:

3907 Shore Parkway Brooklyn, NY 11235 (800) 326-3264

By car, take the Belt Parkway to the Knapp Street station. Trains don't go directly there, but buses do. (I'm not sure which, but you can call the NY Transit Authority at 718-330-1234 to find out.)




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